tailpiece

An appendage or appendix.

An element, often triangular, to which the strings of a violin, guitar, etc. are attached at the lower end of an instrument.

A short joist between a header and a wall.

The part of a telescope containing the adjusting device for the eyepiece, etc.

The part of a lock that transmits motion from the hub to the latch bolt.

An ornamental design at the end of a chapter or page.